Question: Who is the brother or sister of George II of Great Britain?
Paraphrase: Who is the brother or sister of George II of Incredible Britain?
SPARQL (Wikidata):  select distinct ?obj where { wd:Q131981 wdt:P3373 ?obj . ?obj wdt:P31 wd:Q5 } 
Answer: Melusina von der Schulenburg, Countess of Walsingham, Sophia Dorothea of Hanover